Component Life span
So, what is your take on the typical lifespan of components and consumables. From my experience, both practical and forumetical I have come to the following guestimates. I assume mid-high end tier components like shimano slx and 2000 kms/year xc/trail riding. Failure mode on the right (FM)
Brake pads: 3 months FM: pad material wear
Chain: 1 year FM: elongation due to bushing wear
Tires: 6 months rear 1 year front FM: Thread wear
Cables and housings: 2 years FM: cable rust and stretch, housing gunk and wear
Cassette: 2 years FM: cog wear
Bottom bracket: 3 years* FM: bearing wear and/or damaged races
Crankset: 4 years* FM:chainring tooth wear
Headset: 4 years** FM: bearing wear and/or damaged races
Derailleurs: 4 years* FM: bearing and pulley wear
seat: 4 years* FM: hide wear and tear
Handle bar: 5 years* FM: breakage due to metal fatigue
Brakes: 7 years** FM: bores, pistons and cilinder wear and ovalization.
Pedals (shimano spd): 8* years FM: bearing wear and/or damaged races
Fork: 8 years* FM: bushing and stanchion wear.
stem: 10 years FM: breakage due to metal fatigue
Alu: 10 years* FM: breakage due to metal fatigue
Carbon: 10 years* FM: breakage due to delamination and fatigue
Steel: 100 years FM: rust
Titanium: 1000 years FM: fatigue failure
Shifters: infinite lifespan/age of the universe, those things never seem to fail.
* number was somewhat pulled out of my a$$
** number pulled totally out of my a$$
So, what would be your estimates for some of these based on your experience?
Last edited by abelfonseca; 07-04-2014 at 03:01 PM.
'Guestimate' (sic) has 2 's's... I think you need to ride harder too!
I'd like to know what 'forumetical' means, myself.
Originally Posted by rockerc
Estimates from spending too much time of this forum for my own good.
Originally Posted by Finch Platte
Guesstimate on my Chris King headset is 24 years plus.
Re: Component Life span
It's a good topic. Lifespans should really be represented in terms of hours or miles. Actual Lifespans will vary dramatically depending on use. Cogs depending on chain replacement frequency and diversity of gear use. Chains depending on how frequently they are cleaned and lubed, and conditions (dusty / dry / sandy / etc). Forks depending on maintenance frequency. Brakes can last indefinitely if you have the parts (piston seals, master cylinder seals, etc.).
Component Life span
Yea, it all depends on how you ride, when you ride (weather, time of year) and where you ride ( guy in Colorado is way harder on brakes then me in delaware)
My bike is approaching 10 years old. Aside from shock overhauls and a 1x10 drive train upgrade. She is basically stock.
But I ride easy, in only nice weather, and at a relaxed pace .
Sent from my iPhone using Tapatalksdazxvy
Component Life span
Originally Posted by abelfonseca
Depends on quality of said components as well as whether the moon is in retrograde and how close you are to sea level. Insert in formula to get a formtastic guestiamicus closest to the expiration of said part rounded up to the closest prime number x pi.
My Thompson seatpost is 12 years old, the only original component on my '02 Superlight.
Also depends on discipline.
DH and Freeride components will go fast...
YMMV... I typically go with XT or greater level components
Wear and Tear (i.e. replace at least once <3 years)
Frame (although newer bikes >2012 seem to be lasting much longer, I used to break a frame <12mos from 90% of the time new from 07-12), Tires, Rims, spokes, Brake pads, Cassette, Rear D, Chainrings, rotors, Grips, Saddles, Time Pedals, and bars.
Shoes and chamois.
Both carbon and alu bars >3 years come off my bikes as a general rule.
Frame (newer frames), Fork, Crankset, Hubs, BB if highend (CK), headset if highend (CK or CC40/110), Brakes levers and calipers, stems, seatposts (dropper and static), flat pedals.
If you ride in the winter the wear pattern is completely different...
As I suspect if you ride in the southern deserts, or the wet northern coasts...completely different wear patterns.
Originally Posted by jeffscott
S. desert rocky chunk mainly here. I'll play... I have 2 bikes with similar capabilities because I don't like to miss rides thru breakdowns, waiting for parts etc. I ride them both about equal amounts, maybe 4 or 5 hours per week each. Built them both up from frames with high end spec stuff, but older components to save dough.
Tires, maybe 3 months.
BB: 1 year min.
Pedals, flats always: Maybe 1 year til new pins at least.
Frame: Gouges and scratches but so far all good after 4 years on each of them. No reason to suppose they shouldn't be good for at least another 4, even after bouncing down rocky hillsides every so often.
RDs: Bits get 'tweaked quite often, usually have to replace pulley wheels after a year, otherwise it depends on my riding! I have 2 spares at home for parts when needed. Thanks ebay!
DR Hangers: Every so often. They get bent often and I always carry spares.
Front DR: Several years.
Cables: Change every year usually.
Chains: 3 months maybe
Cassettes: 3 months maybe, usually change with chains
Brake pads: 6 months maybe.
Brakes/hardware: Bleed/clean every 6 months approx. Levers get damaged, but not often terminal.
Forks/shock: Service every 6 months or maybe longer if I am not riding so much.
Bars: No need to change unless they break. Not happened yet.
Grips: Maybe a year.
Saddles/posts: Many years. I am comfortable.
Spokes: Break every so often in the rocks. I carry spares.
Freewheel: Change nylon bushing every year or so, pawls every 18 months or so.
Suspension bearings: Maybe every 2 years.
Did I miss something?
^^^^ wtf is "forumetical...?" ^^^^
I've worn out a shifter to the point it had to be replaced.
Seems like fun.
Brake pads: variable, one set all summer, two or three sets over winter, one set a day racing.
Chain: 6 months, stretch
Tires: Highly variable
Cables and housings: 2 years sounds about right.
Cassette: 3 years and counting (change chains often)
Bottom bracket: Buy a Hope one, 3 years and counting.
Crankset: Until you crash too hard (six to eight months for chainrings)
Headset: Forever (buy Hope!)
Derailleurs: Until crash, jockey wheels six months to a year
Handle bar: Until crash
Brakes: Until Hope stop making spares (approx ten years)
Pedals (flat): 3 years body damage from ground strikes
Fork: 2-3 years, crash damage/stress fatigue (lowers crack or stanchions become damaged in accident)
stem: Never broken one
Frame: 6months-6years, crash damage/fatigue, material irrelevant
Shifters have been replaced in my stable more than once. I'd say 5 years if you ride regularly. My old XT's lasted about 5 years.
The Truth will set you free.
....but it might offend you first!
Component Life span
Tires depend greatly on the brand
Cables a year or two
Chain a year or two
Saddle until it gets bent or torn enough to bug me sometimes 7 or 8 years, sometimes a couple of weeks
Stem, bars and posts until I find something I like better.
Drivetrain until a good crash or I upgrade. I run an old 7410 DuraAce on one bike that is close to 30 years old.
Headset is an old king that is 25ish years old. May rebuild it in another 5 years or so
Pedals, I tend to buy new pedals when I wear out the cleats. Why spend 25 on cleats when you can get XT pedals for 60 including cleats.
I have 3 bikes so it spreads out the wear a bit, but my main bike which gets about half the total use goes something like this.
Brake pads: 18 months FM: pad material wear
Chain: 1 year, if I'm lucky FM: elongation due to bushing wear
Tires: 2-3 years FM: Tread wear
Cables and housings: 1-2 years FM: housing gunk
Cassette: 3-4 years FM: cog wear
Bottom bracket: damned if I know, mine won't wear or or die
Crankset: See above, never broken one except the ones that Shimano recalled in the mid to late 90s
Headset: Can't count that high, Chris King and Cane Creek 110 headsets will probably outlive me
Derailleurs:10 years or so FM: pivots get too darn sloppy to hold a gear in the rough
Seat: 4-5 years FM: crash damage
Handlebar: 12 years was the longest I had one. Upgraded to a wider carbon bar.
Brakes: I'm on year 15 of my M755 XT brakes, lever pivot's a bit sloppy but other than that they're good as new
Pedals: I'm at 14 years I think on my Time ATAC Carbon Ti, still in daily use.
Fork: 10-12 years FM: fatigue cracks in the steer tube & crown interface.
Stem: Heck if I know, never broken one
Shifters: 15 years or so FM: internals wear to the point where the ratchets don't catch & release properly
Al: 5-6 years FM: breakage due to metal fatigue
Steel: 15 year on average FM: crash damage
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